Ball Shaped Bur- Excellent for use on round slots and curved surfaces Oval Shaped Bur- Excellent for use on oblong slots and holes Rounded Cylinder Bur- Excellent for use on round-bottom holes and curved surfaces Rounded Tree Bur- Excellent for use on curved surface, slots and curved holes that have rounded bottoms Rounded Taper Point Bur- Excellent for use on tapered holes and rounded bottom slots Flat Cylinder Bur- Excellent for use on straight edges and flat surfaces Pointed Tree Bur- Excellent for use on curved surface, slots and curved holes that have pointed bottoms Pointed Tapered Cone Bur- Excellent for use on tapered holes and slots that have pointed bottoms